Rainbows are the result of sunlight being refracted by drops of water in the air.
Rainbows require sunlight to hit - and be refracted by - the raindrops. There is less likely to be sunlight on an overcast day.
Sunlight is refracted, or bent, when it enters raindrops, and refraction causes the light to pass through the drops in such a way that the spectrum of visible colors is seen.
Rainbows have colors because sunlight is made up of different colors of light. When sunlight passes through raindrops, it gets refracted and reflects inside the raindrop, separating the light into its different colors. This creates the spectrum of colors that we see in a rainbow.
It gets absorbed by the ground and other objects.It gets refracted back.It gets absorbed by the atmosphere before entering Earth's atmosphere.
The sunlight has to be refracted by water drops in order for the sunlight to form a rainbow.
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When sunlight is absorbed it is changed into heat. This is because of the wavelength taken to absorb it.
Rainbows are a light spectrum caused by sunlight refracting through raindrops.
Because when sunlight gets refracted through water droplets in the air, the different wavelengths are refracted a precise amount in relation to each color that gets separated. The reason you see a circle, or arc, is because it came from a single source, the sun.
Refracted
A rainbow happens when sunlight is refracted by drops of water in the air.
When sunlight shines through raindrops, a rainbow may be the result.